Dear all,

is it possible to just pass the approximate Jacobian to the derivative call? Since it’s so complicated in my case to get the exact Jacobian I would like to do sth. like

du = [(F(u + h) – F(u - h))/(2*h)]

Thank you!

Henrik

--

Dipl.-Math. Henrik Büsing

Institute for Applied Geophysics and Geothermal Energy

E.ON Energy Research Center

RWTH Aachen University

------------------------------------------------------

Mathieustr. 10            |    Tel +49 (0)241 80 49907

52074 Aachen, Germany     |    Fax +49 (0)241 80 49889

------------------------------------------------------

http://www.eonerc.rwth-aachen.de/GGE

hbuesing@eonerc.rwth-aachen.de

------------------------------------------------------